U band

The U band is a range of frequencies contained in the microwave region of the electromagnetic spectrum. Common usage places this range between 40 and 60 GHz, but may vary depending on the source using the term.^[1]^[2]

References

^ "Millimeter Wave Propagation: Spectrum Management Implications" (PDF). Federal Communications Commission, Office Of Engineering And Technology, Bulletin Number 70. July 1997. Retrieved September 10, 2016.
^ Halfen, D. T.; Min, J.; Ziurys, L. M. (1 June 2012). "a New U-Band (40 - 60 GHz) Fourier Transform Microwave Spectrometer". 67th International Symposium on Molecular Spectroscopy. Bibcode:2012mss..confEFC01H. Retrieved 26 March 2022.

[1] "Millimeter Wave Propagation: Spectrum Management Implications" (PDF). Federal Communications Commission, Office Of Engineering And Technology, Bulletin Number 70. July 1997. Retrieved September 10, 2016.

[2] Halfen, D. T.; Min, J.; Ziurys, L. M. (1 June 2012). "a New U-Band (40 - 60 GHz) Fourier Transform Microwave Spectrometer". 67th International Symposium on Molecular Spectroscopy. Bibcode:2012mss..confEFC01H. Retrieved 26 March 2022.

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v t e Electromagnetic spectrum
Gamma rays X-rays Ultraviolet Visible Infrared Microwave Radio ← higher frequencies longer wavelengths →
Gamma rays	Very-high-energy gamma ray Ultra-high-energy gamma ray
X-rays	Soft X-ray Hard X-ray
Ultraviolet	Extreme ultraviolet Vacuum ultraviolet Lyman-alpha FUV MUV NUV UVC UVB UVA
Visible (optical)	Violet Blue Cyan Green Yellow Orange Red
Infrared	NIR (Bands: J, K, H) SWIR MWIR (Bands: L, M, N) LWIR FIR
Microwaves	W band V band Q band K_a band K band K_u band X band C band S band L band
Radio	THF EHF SHF UHF VHF HF MF LF VLF ULF SLF ELF
Wavelength types	Microwave Shortwave Medium wave Longwave